by Ciro Santilli (@cirosantilli, 35)
Yet another awk-like domain-specific language to do things from the CLI in a ridiculously short humber of character? Oh yes.
echo '[{"a": 1, "b": 2}, {"b": 3}]' | jq '.[] | select(.a) | .a'
Output:
1
and no empty lines as desired.

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